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 ###Instrução: Qual é o pacote de gatilho no Colt 602 com o tipo de mira traseira a1?
 ###Tabelas: CREATE TABLE summary (summary_id AUTO_INCREMENT PRIMARY KEY, Colt model no. VARCHAR, Military designation VARCHAR, Barrel Length VARCHAR, Barrel VARCHAR, Handguard type VARCHAR, Buttstock type VARCHAR, Pistol grip type VARCHAR, Lower receiver type VARCHAR, Upper receiver type VARCHAR, Rear sight type VARCHAR, Front sight type VARCHAR, Muzzle device VARCHAR, Forward assist? VARCHAR, Case deflector? VARCHAR, Bayonet lug? VARCHAR, Trigger pack VARCHAR) CREATE TABLE clubs (clubs_id AUTO_INCREMENT PRIMARY KEY, Club VARCHAR, Founded INT, Homeground VARCHAR, Suburb VARCHAR, Seniors VARCHAR, Juniors VARCHAR) CREATE TABLE 2501–2600 (2501–2600_id AUTO_INCREMENT PRIMARY KEY, NGC number INT, Object type VARCHAR, Constellation VARCHAR, Right ascension ( J2000 ) VARCHAR, Declination ( J2000 ) VARCHAR, Apparent magnitude INT) CREATE TABLE team_wins_losses_and_draws (team_wins_losses_and_draws_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, 1st Match VARCHAR, Matches VARCHAR, Lost VARCHAR, % Won VARCHAR) CREATE TABLE belmont_stakes_feature_key_prep_races_list (belmont_stakes_feature_key_prep_races_list_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Track VARCHAR, Race VARCHAR, Distance VARCHAR, Surface track VARCHAR, Winning horse VARCHAR, Winning jockey VARCHAR)  
SELECT Trigger pack FROM summary WHERE Rear sight type = A1 AND Colt model no. = 602